27797412 has 12 divisors (see below), whose sum is σ = 64860656. Its totient is φ = 9265800.

The previous prime is 27797411. The next prime is 27797449. The reversal of 27797412 is 21479772.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×27797412² = 1545392227795488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (27797411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158214 + ... + 1158237.

Almost surely, 2^27797412 is an apocalyptic number.

It is an amenable number.

27797412 is an abundant number, since it is smaller than the sum of its proper divisors (37063244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27797412 is a wasteful number, since it uses less digits than its factorization.

27797412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316458 (or 2316456 counting only the distinct ones).

The product of its digits is 49392, while the sum is 39.

The square root of 27797412 is about 5272.3251037849. The cubic root of 27797412 is about 302.9247708322.

The spelling of 27797412 in words is "twenty-seven million, seven hundred ninety-seven thousand, four hundred twelve".